Hi @gmartin200!
Wow, MoveX has been around 5 years now? Time flies.
Anyway, to your question: I’m not sure what format MoveX exports to, but unfortunately unless it supports exporting to the JSON format Arc uses for its backups, which is extremely unlikely, you won’t be able to import it yet.
I recommend voting on the feature request for importing GPX in this poll (assuming MoveX supports exporting to GPX format). You can also vote on the feature request on Arc’s Changemap site. Context: When deciding which features to focus on for each next release I compile a poll on this support forum based on a selection of the top voted requests on Changemap, as well as the highest voted features from the previous poll that I didn’t have time to get to in the previous release.